Oh, I should mention that the 92mm don't necessarily mean it's a 2180, as it could also be an 1835cc engine as well. To figure that out you need to know the stroke, which is easy if the engine is still together, but it sounds like it's not, given all the part numbers that you know. Measuring the distance between the edge of the wrist pin hole (closest to the crown) and to the top of the piston would get you about 29mm if it were the "long stroke" pistons (2180cc) or considerably more (about 7.5mm) if they are short stroke (1835cc).
Mark Langford, Harvest, AL see homebuilt airplane at http://www.N56ML.com email to N56ML "at" hiwaay.net
